[linux-block.git] / drivers / scsi / a4000t.c

/*
 * Detection routine for the NCR53c710 based Amiga SCSI Controllers for Linux.
 *		Amiga Technologies A4000T SCSI controller.
 *
 * Written 1997 by Alan Hourihane <alanh@fairlite.demon.co.uk>
 * plus modifications of the 53c7xx.c driver to support the Amiga.
 *
 * Rewritten to use 53c700.c by Kars de Jong <jongk@linux-m68k.org>
 */

#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <asm/amigahw.h>
#include <asm/amigaints.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_transport_spi.h>

#include "53c700.h"

MODULE_AUTHOR("Alan Hourihane <alanh@fairlite.demon.co.uk> / Kars de Jong <jongk@linux-m68k.org>");
MODULE_DESCRIPTION("Amiga A4000T NCR53C710 driver");
MODULE_LICENSE("GPL");


static struct scsi_host_template a4000t_scsi_driver_template = {
	.name		= "A4000T builtin SCSI",
	.proc_name	= "A4000t",
	.this_id	= 7,
	.module		= THIS_MODULE,
};

static struct platform_device *a4000t_scsi_device;

#define A4000T_SCSI_ADDR 0xdd0040

static int __devinit a4000t_probe(struct platform_device *dev)
{
	struct Scsi_Host *host;
	struct NCR_700_Host_Parameters *hostdata;

	if (!(MACH_IS_AMIGA && AMIGAHW_PRESENT(A4000_SCSI)))
		goto out;

	if (!request_mem_region(A4000T_SCSI_ADDR, 0x1000,
				"A4000T builtin SCSI"))
		goto out;

	hostdata = kzalloc(sizeof(struct NCR_700_Host_Parameters), GFP_KERNEL);
	if (!hostdata) {
		printk(KERN_ERR "a4000t-scsi: Failed to allocate host data\n");
		goto out_release;
	}

	/* Fill in the required pieces of hostdata */
	hostdata->base = (void __iomem *)ZTWO_VADDR(A4000T_SCSI_ADDR);
	hostdata->clock = 50;
	hostdata->chip710 = 1;
	hostdata->dmode_extra = DMODE_FC2;
	hostdata->dcntl_extra = EA_710;

	/* and register the chip */
	host = NCR_700_detect(&a4000t_scsi_driver_template, hostdata, dev);
	if (!host) {
		printk(KERN_ERR "a4000t-scsi: No host detected; "
				"board configuration problem?\n");
		goto out_free;
	}

	host->this_id = 7;
	host->base = A4000T_SCSI_ADDR;
	host->irq = IRQ_AMIGA_PORTS;

	if (request_irq(host->irq, NCR_700_intr, IRQF_SHARED, "a4000t-scsi",
			host)) {
		printk(KERN_ERR "a4000t-scsi: request_irq failed\n");
		goto out_put_host;
	}

	platform_set_drvdata(dev, host);
	scsi_scan_host(host);

	return 0;

 out_put_host:
	scsi_host_put(host);
 out_free:
	kfree(hostdata);
 out_release:
	release_mem_region(A4000T_SCSI_ADDR, 0x1000);
 out:
	return -ENODEV;
}

static __devexit int a4000t_device_remove(struct platform_device *dev)
{
	struct Scsi_Host *host = platform_get_drvdata(dev);
	struct NCR_700_Host_Parameters *hostdata = shost_priv(host);

	scsi_remove_host(host);

	NCR_700_release(host);
	kfree(hostdata);
	free_irq(host->irq, host);
	release_mem_region(A4000T_SCSI_ADDR, 0x1000);

	return 0;
}

static struct platform_driver a4000t_scsi_driver = {
	.driver = {
		.name           = "a4000t-scsi",
		.owner          = THIS_MODULE,
	},
	.probe          = a4000t_probe,
	.remove         = __devexit_p(a4000t_device_remove),
};

static int __init a4000t_scsi_init(void)
{
	int err;

	err = platform_driver_register(&a4000t_scsi_driver);
	if (err)
		return err;

	a4000t_scsi_device = platform_device_register_simple("a4000t-scsi",
			-1, NULL, 0);
	if (IS_ERR(a4000t_scsi_device)) {
		platform_driver_register(&a4000t_scsi_driver);
		return PTR_ERR(a4000t_scsi_device);
	}

	return err;
}

static void __exit a4000t_scsi_exit(void)
{
	platform_device_unregister(a4000t_scsi_device);
	platform_driver_unregister(&a4000t_scsi_driver);
}

module_init(a4000t_scsi_init);
module_exit(a4000t_scsi_exit);
Commit	Line	Data
a16efc1c KJ	1	/*
	2	* Detection routine for the NCR53c710 based Amiga SCSI Controllers for Linux.
	3	* Amiga Technologies A4000T SCSI controller.
	4	*
	5	* Written 1997 by Alan Hourihane <alanh@fairlite.demon.co.uk>
	6	* plus modifications of the 53c7xx.c driver to support the Amiga.
	7	*
	8	* Rewritten to use 53c700.c by Kars de Jong <jongk@linux-m68k.org>
	9	*/
	10
	11	#include <linux/module.h>
	12	#include <linux/platform_device.h>
	13	#include <linux/init.h>
	14	#include <linux/interrupt.h>
96249cf9	15	#include <asm/amigahw.h>
a16efc1c KJ	16	#include <asm/amigaints.h>
	17	#include <scsi/scsi_host.h>
	18	#include <scsi/scsi_transport_spi.h>
	19
	20	#include "53c700.h"
	21
	22	MODULE_AUTHOR("Alan Hourihane <alanh@fairlite.demon.co.uk> / Kars de Jong <jongk@linux-m68k.org>");
	23	MODULE_DESCRIPTION("Amiga A4000T NCR53C710 driver");
	24	MODULE_LICENSE("GPL");
	25
	26
	27	static struct scsi_host_template a4000t_scsi_driver_template = {
	28	.name = "A4000T builtin SCSI",
	29	.proc_name = "A4000t",
	30	.this_id = 7,
	31	.module = THIS_MODULE,
	32	};
	33
	34	static struct platform_device *a4000t_scsi_device;
	35
	36	#define A4000T_SCSI_ADDR 0xdd0040
	37
7a192ec3	38	static int __devinit a4000t_probe(struct platform_device *dev)
a16efc1c	39	{
bbfbbbc1	40	struct Scsi_Host *host;
a16efc1c KJ	41	struct NCR_700_Host_Parameters *hostdata;
	42
	43	if (!(MACH_IS_AMIGA && AMIGAHW_PRESENT(A4000_SCSI)))
	44	goto out;
	45
	46	if (!request_mem_region(A4000T_SCSI_ADDR, 0x1000,
	47	"A4000T builtin SCSI"))
	48	goto out;
	49
bbfbbbc1 MK	50	hostdata = kzalloc(sizeof(struct NCR_700_Host_Parameters), GFP_KERNEL);
bbfbbbc1 MK	51	if (!hostdata) {
a16efc1c KJ	52	printk(KERN_ERR "a4000t-scsi: Failed to allocate host data\n");
	53	goto out_release;
	54	}
a16efc1c KJ	55
	56	/* Fill in the required pieces of hostdata */
	57	hostdata->base = (void __iomem *)ZTWO_VADDR(A4000T_SCSI_ADDR);
	58	hostdata->clock = 50;
	59	hostdata->chip710 = 1;
	60	hostdata->dmode_extra = DMODE_FC2;
	61	hostdata->dcntl_extra = EA_710;
	62
	63	/* and register the chip */
	64	host = NCR_700_detect(&a4000t_scsi_driver_template, hostdata, dev);
	65	if (!host) {
	66	printk(KERN_ERR "a4000t-scsi: No host detected; "
	67	"board configuration problem?\n");
	68	goto out_free;
	69	}
	70
	71	host->this_id = 7;
	72	host->base = A4000T_SCSI_ADDR;
	73	host->irq = IRQ_AMIGA_PORTS;
	74
	75	if (request_irq(host->irq, NCR_700_intr, IRQF_SHARED, "a4000t-scsi",
	76	host)) {
	77	printk(KERN_ERR "a4000t-scsi: request_irq failed\n");
	78	goto out_put_host;
	79	}
	80
7a192ec3	81	platform_set_drvdata(dev, host);
a16efc1c KJ	82	scsi_scan_host(host);
	83
	84	return 0;
	85
	86	out_put_host:
	87	scsi_host_put(host);
	88	out_free:
	89	kfree(hostdata);
	90	out_release:
	91	release_mem_region(A4000T_SCSI_ADDR, 0x1000);
	92	out:
	93	return -ENODEV;
	94	}
	95
7a192ec3	96	static __devexit int a4000t_device_remove(struct platform_device *dev)
a16efc1c	97	{
7a192ec3	98	struct Scsi_Host *host = platform_get_drvdata(dev);
a16efc1c KJ	99	struct NCR_700_Host_Parameters *hostdata = shost_priv(host);
	100
	101	scsi_remove_host(host);
	102
	103	NCR_700_release(host);
	104	kfree(hostdata);
	105	free_irq(host->irq, host);
	106	release_mem_region(A4000T_SCSI_ADDR, 0x1000);
	107
	108	return 0;
	109	}
	110
7a192ec3 ML	111	static struct platform_driver a4000t_scsi_driver = {
	112	.driver = {
	113	.name = "a4000t-scsi",
	114	.owner = THIS_MODULE,
	115	},
	116	.probe = a4000t_probe,
	117	.remove = __devexit_p(a4000t_device_remove),
a16efc1c KJ	118	};
	119
	120	static int __init a4000t_scsi_init(void)
	121	{
	122	int err;
	123
7a192ec3	124	err = platform_driver_register(&a4000t_scsi_driver);
a16efc1c KJ	125	if (err)
	126	return err;
	127
	128	a4000t_scsi_device = platform_device_register_simple("a4000t-scsi",
	129	-1, NULL, 0);
	130	if (IS_ERR(a4000t_scsi_device)) {
7a192ec3	131	platform_driver_register(&a4000t_scsi_driver);
a16efc1c KJ	132	return PTR_ERR(a4000t_scsi_device);
	133	}
	134
	135	return err;
	136	}
	137
	138	static void __exit a4000t_scsi_exit(void)
	139	{
	140	platform_device_unregister(a4000t_scsi_device);
7a192ec3	141	platform_driver_unregister(&a4000t_scsi_driver);
a16efc1c KJ	142	}
	143
	144	module_init(a4000t_scsi_init);
	145	module_exit(a4000t_scsi_exit);